Groundcover rose plant named ‘Poultc015’

ABSTRACT

A new garden rose plant of the ground cover class which has abundant, orange blend flowers and attractive foliage. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.

Botanical designation: Rosa hybrid.

Variety denomination: ‘Poultc015’.

SUMMARY OF THE INVENTION

The present invention constitutes a new and distinct variety of garden rose plant which originated from a controlled crossing between the female seed parent, an unnamed, non-commercial seedling, and the male pollen parent, also an unnamed, non-commercial seedling.

The two parents were crossed during the summer of 2001 and the resulting seeds were planted in a controlled environment in Fredensborg, Denmark. The new variety, named ‘Poultc015’, originated as a single seedling from the stated cross.

The new variety may be distinguished from its female seed parent by flower color. The seed parent has yellow flowers while the new variety has yellow-orange flowers.

The new variety may be distinguished from its male pollen parent by the following combination of characteristics. The pollen parent is more upright and taller in growth habit than ‘Poultc015’.

The objective of the hybridization of this rose variety was to create a new and distinct variety for garden use with unique qualities, such as:

-   -   1. Uniform and abundant orange blend flowers;     -   2. Vigorous, but compact growth when propagated both as a budded         rose and on its own roots;     -   3. Exceptional disease resistance.

This combination of qualities is not present in previously available commercial cultivars of this type, known to the inventor, and distinguish ‘Poultc015’ from all other varieties of which we are aware.

As part of the rose development program, Mogens N. Olesen germinated the seeds from the aforementioned hybridization during winter of 2001 and conducted evaluations on the resulting seedlings in a controlled environment in Fredensborg, Denmark. ‘Poultc015’ was selected in the spring of 2002 by the inventor as a single plant from the progeny of the aforementioned hybridization.

Asexual reproduction of ‘Poultc015’ by traditional budding and rooted cuttings was first done by Mogens N. Olesen in the nursery in Fredensborg, Denmark in July, 2002. This initial and other subsequent asexual propagations conducted in controlled environments have demonstrated that the characteristics of ‘Poultc015’ are true to type and are transmitted from one generation to the next.

BRIEF DESCRIPTION OF THE DRAWING

The accompanying color illustrations show as true as is reasonably possible to obtain in color photographs of this type, the typical characteristics of the buds, flowers, leaves, and stems, of ‘Poultc015’. Specifically illustrated in the drawings are:

FIG. 1: Open flowers, flower petals detached, and reproductive parts;

FIG. 2: Juvenile growth, mature leaves, and bare stem.

DETAILED DESCRIPTION OF THE VARIETY

The following is a description of ‘Poultc015’, as observed in its growth in a field nursery in Jackson County, Oreg. Observed plants are 3 years of age, and were grown on Rosa multiflora understock. Color references are made using The Royal Horticultural Society (London, England) Colour Chart, 2001, except where common terms of color are used.

For a comparison, several physical characteristics of the rose variety ‘Poultc014’, U.S. Plant Pat. No. 18,444, are compared to ‘Poultc015’ in Chart 1.

CHART 1 ‘Poultc015’ ‘Poultc014’ Petal Count 20 35 Flower Diameter 50 to 60 mm 30 mm General Tonality On open flower Orange Yellow Group 8A to of Flower Color Group 24B with intonations Yellow Group 10B. No of Orange Group 25A. change in tonality at the Afterwards, general tonality end of the 7th day. is Yellow-Orange Group Afterwards, general 19B with intonations of tonality is Yellow Group Orange Group 24B. 10C to Yellow Group 10D.

FLOWER AND FLOWER BUD

-   Blooming habit: Continuous. -   Flower bud:     -   -   Size.—Upon opening, 20 mm in length from base of receptacle             to end of bud. Bud diameter is 10 mm.         -   Bud form.—Ovoid.         -   Bud color.—As sepals unfold, petals are Yellow-Orange Group             23C.         -   Sepal inner surface.—Color: Green Group 138B. Surface:             Medium pubescence observed.         -   Sepal outer surface.—Color: Yellow-Green Group 146A.             Anthocyanic pigments the color of Greyed-Purple Group 183B             observed. Texture: Smooth.         -   Sepal shape.—Typically lanceolate. Broad at the base and             mid-point, becoming narrow and acuminate at the apex. Base:             Flat at union with receptacle.         -   Sepal margin.—Margins have strong foliaceous appendages on             three of the five sepals.         -   Sepal size.—25 to 30 mm long by 7 mm wide.         -   Receptacle.—Texture: Smooth. Shape: Funnel shaped. Size: 5             mm tall by 6 mm wide on average. Color: Yellow-Green Group             146C. Anthocyanic pigments the color of Greyed-Red Group             180B observed.         -   Peduncle.—Length: 5 cm on average. Diameter: 2 to 3 mm.             Color: Yellow-Green Group 145A.         -   Pedicel.—Surface: Smooth. Length: 40 mm on average.             Diameter: 2 mm on average. Color: Yellow-Green Group 145A.             Anthocyanic pigments the color of Greyed-Red Group 178C             observed. Strength: Moderate. -   Flower bud development: Flower buds are borne in clusters of 5 to 7     flower buds per stem. -   Flower bloom:     -   -   Fragrance.—Moderate perfume, floral scent.         -   Duration.—The blooms have a duration on the plant of             approximately 7 to 10 days. Petals fall cleanly away from             plant after flowers have fully matured.         -   Size.—Flower diameter is 50 to 60 mm when open. Flower depth             is 13 mm.         -   Flower shape.—Generally flowers are open, with 2 or 3 whorls             of petals slightly overlapping.         -   Shape of flower, side view.—After opening the upper and             lower portions are flattened convex. -   Petalage: Under normal conditions, flowers have 20 petals total, 5     of which are petaloids. -   Petal color:     -   -   Upon opening, outer and inner petals.—Upper surface: Orange             Group 24B with shaded intonations of Yellow-Orange Group             17D. Lower surface: Yellow-Orange Group 18A with shades of             Yellow-Orange Group 16B at the margins. Occasional streaks             of Red-Purple Group 58B.         -   Basal petal spots, upon opening.—Upper surface: Yellow-Green             Group 12A. Lower surface: Yellow-Green Group 11A.         -   After opening, outer and inner petals.—Upper surface:             Yellow-Orange Group 22B with intonations of Yellow-Green             Group 14A. Lower surface: Yellow-Orange Group 14C with             shades of Yellow-Orange Group 16B. Occasional streaks of             Red-Purple Group 58B.         -   Basal petal spots, after opening.—Upper surface:             Yellow-Green Group 12A. Lower surface: Yellow-Green Group             11A. -   General tonality: On open flower Orange Group 24B with intonations     of Orange Group 25A. Afterwards, general tonality is Yellow-Orange     Group 19B with intonations of Orange Group 24B. -   Petals:     -   -   Petal reflex.—Weak petal reflex.         -   Margin.—Entire and uniform.         -   Shape.—Narrow elliptic. Apex shape: Cuspidate. Base shape:             Acute.         -   Size.—Outer petals are 22 mm (l)×21 mm (w). Inner petals are             20 mm (l)×11 mm (w).         -   Texture.—Smooth.         -   Thickness.—Average. -   Petaloids:     -   -   Quantity.—5 on average.         -   Shape.—Irregular and asymmetric. Occasionally there is a             cleft at the margin. Apex and base are generally acute.         -   Color.—Upper surface is Orange Group 24B with shaded             intonations of Yellow-Orange Group 17D. Basal petals spots             are Yellow-Green Group 12A. Lower surface is Yellow-Orange             Group 18A with shades of Yellow-Orange Group 16B at the             margins. Occasional streaks of Red-Purple Group 58B. Basal             petal spots on lower surface are Yellow-Green Group 11A.         -   Size.—20 mm (l)×7 mm (w) on Average. -   Reproductive organs:     -   -   Pollen.—None observed.         -   Anthers.—Size: 3 mm in length. Color: Yellow Group 11B.             Quantity: 100 on average.         -   Filaments.—Color: Yellow-Orange Group 14B. Length: 6 mm.         -   Pistils.—Length: 5 mm. Quantity: 50 on average.         -   Stigmas.—Level in location relative to the length of the             filaments and the height of the anthers. Color: Greyed-Green             Group 193C.         -   Styles.—Color: Greyed-Green Group 193C.         -   Hips.—None Observed in the field nursery in Jackson County             Oreg.

PLANT

-   Plant growth: Bushy, well branched. When grown as a budded field     grown plant on Rosa multiflora understock, the average height of the     plant is 80 cm and the average width is 80 cm. -   Stems:     -   -   Color.—Juvenile growth: Yellow-Green Group 144B. Mature             growth: Yellow-Green Group 144B.         -   Length.—On average, canes are 20 cm from the base of the             plant to the flowering portion.         -   Diameter.—5 mm.         -   Internodes.—On mature canes, there is an average distance of             30 mm between nodes.         -   Surface texture.—Young wood: Smooth. Older wood: Smooth. -   Prickles:     -   -   Incidence.—3 prickles per 10 cm of stem.         -   Size.—Average length of prickles on mature stems is 2 mm.         -   Shape.—Concave on upper and lower surface.         -   Color.—Juvenile prickles: Yellow-White Group 158B. Mature             prickles: Yellow-White Group 158B. -   Plant foliage: Normal number of leaflets leaves in middle of the     stem: 5 leaflets.     -   -   Compound leaf.—80 mm (l)×55 (w) on average.         -   Quantity.—3 leaves per 10 cm of stem on average.         -   Color of mature foliage.—Upper side: Yellow-Green Group             147A. Lower side: Yellow-Green Group 147B.         -   Color of juvenile foliage.—Upper side: Green Group 143B.             Lower side: Yellow-Green Group 144B. Margins: Anthocyanic             pigments the color of Greyed-Purple Group 183C. -   Plant leaves and leaflets:     -   -   Stipules.—Size: 15 mm in length. Quantity: 2 per compound             leaf. Shape: Linear, slightly broad based with outward             extending apices. Margins: Finely serrated with few             stipitate glands. Color: Yellow-Green Group 144A.         -   Petiole.—Length: 25 mm average. Diameter: 2 mm.         -   Upper surface.—Color: Yellow-Green Group 144A. Observations:             Few stipitate glands observed.         -   Lower surface.—Color: Yellow-Green Group 144C. Texture:             Smooth.         -   Rachis.—Length: 40 mm average. Diameter: 2 mm.         -   Upper surface.—Color: Yellow-Green Group 144A. Observations:             Few stipitate glands observed.         -   Lower surface.—Color: Yellow-Green Group 144C. Texture:             Smooth.         -   Leaflet.—Edge: Serrated. Size: Average size of the terminal             leaflet on normal leaves is 31 mm in length by 24 mm wide.             Shape: Generally elliptical. Base: Rounded. Apex: Mucronate.             Texture: Smooth. // Rough. Thickness: Average. Arrangement:             Odd pinnate. Venation: Reticulate. Glossiness: Matte, no             leaf gloss. -   Disease resistance: Above average resistance to powdery and downy     mildew, rust, black spot, and Botrytis under normal growing     conditions in Jackson County, Oreg. -   Cold hardiness: The variety is tolerant to USDA Cold Hardiness Zone     6. -   Heat tolerance: The variety has been found to be suitable for     climate conditions found in the American Horticulture Society heat     zone 7. 

What is claimed is:
 1. A new and distinct variety of rose plant of the ground cover rose class named ‘Poultc015’, substantially as illustrated and described herein, due to its abundant orange blend flowers, disease resistance, and extended period of bloom. 